TASS reported that during a visit to an unmanned aerial vehicle (UAV) factory in St. Petersburg. Petersburg on February 19, Russian President Vladimir Putin said that the Russian army had crossed the Ukrainian border in Kursk province.
According to the latest information I received about an hour ago: Soldiers of the 810th Brigade crossed the border of the Russian Federation and Ukraine, entered the neighboring territory at night, Putin told the press.
The Russian leader stressed that the country's army is continuing to advance along the entire front line. Our forces are advancing along the entire front line, Putin said.

Brigade 810 - Zhukov and Ushakov Medal-winning Naval Coast Guard infantry Unit - is one of the most elite forces of the Russian army, fighting in the most complex frontline areas during the special military campaign in Ukraine. They have participated in many important campaigns.
In particular, the 810th Brigade participated in occupying Mariupol, repelling the Ukrainian counter-offensive in Zaporizhzhia province and carrying out combat missions in the island area of the Dnieper River in Kherson province.
As the Ukrainian army increased its attacks on Russia's Kursk region, units of the 810th Brigade were mobilized here to protect the border and carry out combat missions.
In early February, the 810th Brigade and other forces such as the 11th Air Force infantry Brigade, the 40th Naval infantry Brigade, the Rubicon UAV Center and the 177th Naval Infantry Regiment coordinated to repel 8 attacks by the Ukrainian army.
President Putin has repeatedly stressed that Russian forces in the Kursk direction are operating "efficiently, professionally and boldly" in their missions.